fix: avoid downgrade in non-interactive mode

fix: reinstalling same version is not counted as downgrading.

src/command_selfupdate.rs

@@ -46,19 +46,22 @@ pub fn run_command_selfupdate(paths: &GlobalPaths) -> Result<()> {
 
  let version = download_juliaup_version(&version_url.to_string())?;
 
- // TODO: how to deal with automatic background updates?
- if version <= get_own_version().unwrap() && std::io::stdin().is_terminal() {
- eprintln!(
- "You are trying to install version: {}-{}, but the currently installed version is newer (or the same)",
- juliaup_channel, version
- );
+ if version < get_own_version().unwrap() {
+ // If not in iteractive mode, avoid downgrading automatically
+ if !std::io::stdin().is_terminal() {
+ return Ok(());
+ }
 
+ eprintln!(
+ "You are trying to install version: {}-{}, but the currently installed version is newer",
+ juliaup_channel, version
+ );
  match Confirm::with_theme(&SimpleTheme)
  .with_prompt("Do you want to continue?")
  .default(false)
  .interact()?
  {
- true => {}
+ true => {} // continue
  false => return Ok(()),
  }
  }